#!/usr/bin/env python
# -*- coding: utf-8 -*-

"""
启动脚本
"""

__author__ = 'Loyi'

import os

COV = None
if os.environ.get('FLASK_COVERAGE'):
    import coverage

    COV = coverage.coverage(branch=True, include='app/*')
    COV.start()

from app import create_app, db
from app.models import User, Role, Post, Follow, Permission, Comment
from flask_script import Manager, Shell
from flask_migrate import Migrate, MigrateCommand

app = create_app(os.getenv('FLASK_CONFIG') or 'default')
# Flask-Script 为 Flask 程序添加了一个命令行解析器。
# 支持自定义命令。启动命令 python hello.py runserver
manager = Manager(app)
# 配置 Flask-Migrate
# 使用 init 子命令会创建 migrations 文件夹，所有迁移脚本都存在在其中
migrate = Migrate(app, db)


def make_shell_context():
    return dict(app=app, db=db, User=User, Role=Role, Post=Post, Follow=Follow, Permission=Permission, Comment=Comment)


manager.add_command("shell", Shell(make_context=make_shell_context))
manager.add_command('db', MigrateCommand)


@manager.command
def test(coverage=False):
    """Run the unit tests."""
    if coverage and not os.environ.get('FLASK_COVERAGE'):
        import sys
        os.environ['FLASK_COVERAGE'] = '1'
        os.execvp(sys.executable, [sys.executable] + sys.argv)
    import unittest
    tests = unittest.TestLoader().discover('test')
    unittest.TextTestRunner(verbosity=2).run(tests)
    if COV:
        COV.stop()
        COV.save()
        print('Coverage Summary:')
        COV.report()
        basedir = os.path.abspath(os.path.dirname(__file__))
        covdir = os.path.join(basedir, 'tmp/coverage')
        COV.html_report(directory=covdir)
        print('HTML version: file://%s/index.html' % covdir)
        COV.erase()


@manager.command
def profile(length=25, profile_dir=None):
    """Start the application under the code profiler."""
    from werkzeug.contrib.profiler import ProfilerMiddleware
    app.wsgi_app = ProfilerMiddleware(app.wsgi_app, restrictions=[length],
                                      profile_dir=profile_dir)
    app.run()


# 程序实例用 run 方法启动 Flask 集成的开发 Web 服务器
# __name__ == '__main__'　是　Python 的惯常用法，debug=True　为调试模式
if __name__ == '__main__':
    manager.run()
